Jiangsu Hualai Electrical Technology Co., Ltd. is a professional power transformer manufacturer. Focusing on global power equipment supporting demands, we specialize in the R&D and production of high-stability and high-durability oil-immersed transformers. Supported by a mature R&D system and standardized full-process quality control system, our transformers deliver stable performance and reliable quality. Widely applied in global medium and high-voltage power transmission and distribution projects, they provide consistent and efficient power guarantee for large-scale power engineering projects.
Our oil-immersed transformers adopt high-quality Cold-Rolled Grain-Oriented (CRGO) silicon steel core structure, which effectively reduces core loss and improves overall energy efficiency. It significantly lowers long-term operational and maintenance costs, achieving dual advantages of energy conservation and economic operation. The windings adopt immersed design with high-performance insulating mineral oil, offering excellent electrical insulation and heat dissipation performance to ensure continuous and stable operation under high-voltage and heavy-load complex working conditions. Equipped with two standardized cooling solutions, ONAN (Oil Natural Air Natural) for small-capacity units and ONAF (Oil Natural Air Forced) for large-capacity units, our products feature strong universality and adaptability to meet diverse power operation requirements.
This series of transformers boasts excellent overload capacity and heat dissipation performance, with a designed service life of 20 to 30 years. It features low failure rate and long maintenance cycle, effectively reducing the overall operation and maintenance costs of projects. The products are widely applicable to industrial plants, substations, photovoltaic and wind power new energy stations, large-scale power transmission and distribution networks and other power engineering scenarios. We strictly implement international production standards and support non-standard customization services. Customization on voltage level and equipment capacity is available, and structural & process optimization can be carried out for special outdoor environments such as high temperature, high humidity and salt spray corrosion to adapt to engineering application standards in different regions worldwide.
With years of experience in the production and export of oil-immersed transformers, all our products comply with IEC, CE and other international authoritative certification standards, meeting customs clearance and project acceptance requirements of various countries. We have established a comprehensive full-process quality inspection system covering raw material incoming inspection, in-process testing and finished product delivery tests, ensuring all equipment reaches standard parameters with stable and reliable quality. We provide professional technical solution support and supporting technical services for both standard and customized projects, fully guaranteeing the stable operation of customers’ power systems.
If you need customized oil-immersed transformer solutions for your project conditions, please contact Jiangsu Hualai Electrical Technology Co., Ltd. for professional technical consultation and tailored solutions.
